It was only today that I noticed this, but if you have your first Esper (lets say you choose Vaan to use him for example) go to Dalmasca Estersand and track out the a 'Wild Saurian' - who had a level or around 30 when I fought it (can't exactly remember) and had health of 6k. But be warned, I have seen other various websites that say this monster has a level span of 29-99, so depending on your level, the Wild Saurian could have more difficulties as you get higher levels (?). Once you have found him, summon up Belias (or any other of your Espers if you have them) who will then have the Wild Saurian down in no time. After you have killed the Wild Saurian with Vaan and Belias, you will find that you earn atleast 2.5k-3k experiance points and 2 LP depending on what level you are at the time (?).

This technique would easily be able to repeat its self as it would only take a minute to quickly run back to Rabanastre and refresh all your party members, then running back into the Dalmasca Esterend; although the Wild Saurian may have a certain respawn time (?).

I was level 17 (possibly 18) when I decided to have a bash at the dinosaur myself by using Belias; earning 2.8k experience and 2 LP once I had killed it.

Another way you could possibly do this, which allows the whole party to receive experience, is by basically using a quickening.
I hope this helps at least some people who are in search of quick ways to gain experience whilst in their early stages of the game.

By the way, if there has recently already been a thread which is relevant to mine, please do not flame me because I really couldn't be bothered searching all of the 'Historic' threads ^^.

*(?) Where you find all of these (?) after some comments, these are just things which I do not know if they are true; so if anybody could confirm these , that would help a lot to me and other people too.

Werewolves in Giza plains would be another good target for that trick.

To be honest, I'd say it makes more sense to level up on greater numbers of the smaller fiends. Not only do you get more LP, but if, like me, you like to maximise HP and MP gains in between levels, there's less chance of multiple characters levelling up at the same time, which can be a pain if you're trying build optimum characters.

That method is however good if you don't care much about optimising stats. Particularly if you have low-level characters that you don't use a lot - you can switch them in as the monster is about to die and gain them the EXP.

No one else is probably gonna suggest this but here's an interesting idea. If this is your second time playing (or your first), use an alchemy guide for the Bazaar goods and spend time in each area of the game fighting the monsters until you get all the loot that you need to make everything that includes all the possible ones you can get from the monsters in that area, and keep doing this at every area. You'll gain a lot of levels and have a purpose at the same time ;)

I just remember I was doing this the second time around and I found I always was twice the level that I was at each place last time I played the game. Heh heh...

i leveled from lvl 13 to 22 or so pretty quickly in the lhusu mines. you know the part at the second bridge you can go to where all the skeletons spawn? there really are a lot of them and they give like 130xp each. just walk back and forth over the area a couple of times until they stop spawning. then move away 2 zones and go back and they're back